The BGP Instability Report


The BGP Instability Report is updated daily. This report
was generated on 21 August 2008 02:08 (UTC+1000)


50 Most active ASes for the past 31 days

RANKASN             UPDs            %PrefixesUPDs/PrefixAS NAME
11803981171.63%128976.12ICMNET-5 - Sprint
29583883121.46%124970.71SIFY-AS-IN Sify Limited
35691750771.24%135775.15MITRE-AS-5 - The MITRE Corporation
48151720271.19%216233.31Uninet S.A. de C.V.
59051674261.12%156432.22IDM Autonomous System
64538523680.87%501810.44ERX-CERNET-BKB China Education and Research Network Center
710396509330.84%501018.66COQUI-NET - DATACOM CARIBE, INC.
84766495120.82%89455.38KIXS-AS-KR Korea Telecom
96298492430.82%211823.25COX-PHX - Cox Communications Inc.
1033783485280.80%165294.11EEPAD
1117488465400.77%140333.17HATHWAY-NET-AP Hathway IP Over Cable Internet
128866351050.58%321109.36BTC-AS Bulgarian Telecommunication Company Plc.
1317974347380.58%74946.38TELKOMNET-AS2-AP PT Telekomunikasi Indonesia
149299346020.57%128326.97IPG-AS-AP Philippine Long Distance Telephone Company
159929341710.57%309110.59CNCNET-CN China Netcom Corp.
1614522338810.56%205165.27Satnet
173464323750.54%37187.26ASC-NET - Alabama Supercomputer Network
186389293540.49%32599.01BELLSOUTH-NET-BLK - BellSouth.net Inc.
1918231281870.47%247114.12EXATT-AS-AP IOL NETCOM LTD
2047467265750.44%213287.50GRIFFEL Griffel AB
2128194262790.44%83284.88
2227839256490.43%39657.67Comteco Ltda
237228248280.41%202122.91AS-PAETEC-NET - PaeTec Communications, Inc.
24209246240.41%47255.21ASN-QWEST - Qwest
2530969245680.41%112233.45TAN-NET TransAfrica Networks
265056232710.39%123189.20INS-NET-2 - Iowa Network Services
27702227330.38%54841.48AS702 Verizon Business EMEA - Commercial IP service provider in Europe
2816473226740.38%23496.90TNII - Bell South
2914846219110.36%44497.98CGNOGE - NBC Internet
3023966206800.34%33661.55LDN-AS-AP LINKdotNET Telecom Limited
315237191650.32%33580.76DODNIC - DoD Network Information Center
329498189740.31%71126.69BBIL-AP BHARTI Airtel Ltd.
335803188880.31%21089.94DDN-ASNBLK - DoD Network Information Center
341295188730.31%39483.92BGNOGE - General Electric Company
3511492188720.31%122615.39CABLEONE - CABLE ONE
3612654187850.31%40469.62RIPE-NCC-RIS-AS RIPE NCC RIS project
3723082184120.31%53682.40MPHI - Michigan Public Health Institute
387018183900.30%147712.45ATT-INTERNET4 - AT&T WorldNet Services
399155181220.30%26668.13QualityNet AS number
409829177310.29%81521.76BSNL-NIB National Internet Backbone
416458176420.29%23973.82Telgua
427738172730.29%26764.69Telecomunicacoes da Bahia S.A.
4325620170230.28%65261.89COTAS LTDA.
4410620169540.28%41540.85TV Cable S.A.
4520115165340.27%112214.74CHARTER-NET-HKY-NC - Charter Communications
46680164900.27%27559.96DFN-IP service G-WiN
473921159850.27%34470.15AGNOGE - General Electric Company
4833776157520.26%119132.37STARCOMMS-ASN
4931567157430.26%101574.30AKSORAN Aksoran LCC
502386152980.25%16089.51INS-AS - AT&T Data Communications Services
Total 157519426.10%

50 Most active ASes for the past 31 days

RANKASN             UPDs/Prefix         %PrefixesUPDs   AS NAME
14746713287.50.44%226575GRIFFEL Griffel AB
256916825.21.24%1375077MITRE-AS-5 - The MITRE Corporation
3299106784.00.11%16784IACP - INTL. ASSN OF CHIEF OF POLICEI
4145936047.00.10%16047BRAND-INSTITUTE - Brand Instiute, Inc.
5272455680.50.19%211361HEIDRICK-CHICAGO - HEIDRICK
6406273742.00.12%27484RC-COLO1 - RingCentral Inc
7230823682.40.31%518412MPHI - Michigan Public Health Institute
8281943284.90.44%826279
9391052386.00.04%12386CLASS-AS SC Class Computers And Service SRL
10309292313.00.04%12313HUTCB Hidrotechnical Faculty - Technical University
11226782259.00.04%12259OSDE
12309692233.50.41%1124568TAN-NET TransAfrica Networks
13397482127.00.04%12127VITAS VITAS LLC
14283611926.00.03%11926
15397941777.00.03%11777EL-KOZIENICE-AS Elektrownia Kozienice S.A.
16239171746.00.03%11746BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane
17285421735.00.03%11735Gobierno del Estado de Coahuila
18112681720.00.03%11720WNM-ORG - Walls New Media
1953821710.00.03%11710TELESYSTEM-NET Planet Service Srl
20392441653.00.03%11653TEQNOBASE-AS Teqnobase AS
21427951600.00.03%11600XEROX-GENERAL-AS Xerox General Services
22315671574.30.26%1015743AKSORAN Aksoran LCC
23423801494.00.02%11494ERGOLT-AS ERGO LIETUVA UADB
24318561487.80.10%45951CABSAS
25353851261.00.02%11261QOU Alquds Open University
26387171258.10.17%810065TATI-AS-AP Top Amusement Technology International Corp. (for BGP GRE)
27473481252.00.02%11252PEACE_GLOBAL Peace Global Satellite Communications Limited
28262761240.60.10%56203TIMKEN-USA - The Timken Company
2997471178.30.18%910605EZINTERNET-AS-AP EZInternet Pty Ltd
30172701149.00.02%11149SFI-CFCC - Systems of the Future, Inc.
31423621147.10.17%910324ALANIA-AS Sevosetinelectrosvyaz
32120461114.00.09%55570ASN-CSC-UOM Computing Services Centre
33463021021.00.03%22042CINQUIX - Cinquix Networks
34103961018.70.84%5050933COQUI-NET - DATACOM CARIBE, INC.
3522266998.00.03%21996KNIGHT-INC - KNIGHT TRANSPORTATION
365801984.20.07%43937DDN-ASNBLK - DoD Network Information Center
3724992926.30.05%32779DIC-AS DIC Online Wolf & Co. KG
3845016916.00.02%1916WKOKS-ASN Weglokoks S.A.
3933290899.80.06%43599BROADVOICE-DCA - Broadvoice, Inc.
406337896.50.15%108965HIWAAY - HIWAAY INFORMATION SERVICES, INC.
4113392883.00.01%1883R18ESC - Region 18 Education Service Center
4225156863.00.01%1863INRETE-AS INRETE S.r.l.
4323348850.00.11%86800EQT - Equatorial Research & Marketing Corp.
4431462846.00.03%21692ABSOLUTBANK-AS AKB "Absolut Bank" (ZAO)
455745844.00.01%1844Organizacion Panamericana de la Salud
4625250824.30.04%32473GAMTEL-AS
4743908810.00.01%1810PSV-AS JSC Pursvyaz AS
4821578767.00.03%21534Universidad autonoma de Bucaramanga
493944766.20.05%43065PARTAN-LAB - Partan & Partan
5043025742.00.01%
Total 104531.26.47%

50 Most active Prefixes for the past 31 days

RANKPREFIX           UPDs            %Origin AS -- AS NAME
1192.12.120.0/24749471.15%5691 -- MITRE-AS-5 - The MITRE Corporation
2194.126.143.0/24618850.95%9051 -- IDM Autonomous System
3221.134.222.0/24614840.94%9583 -- SIFY-AS-IN Sify Limited
483.228.71.0/24280220.43%8866 -- BTC-AS Bulgarian Telecommunication Company Plc.
5221.128.192.0/18253130.39%18231 -- EXATT-AS-AP IOL NETCOM LTD
672.50.96.0/20242890.37%10396 -- COQUI-NET - DATACOM CARIBE, INC.
7196.42.0.0/20146800.23%10396 -- COQUI-NET - DATACOM CARIBE, INC.
862.182.216.0/21132970.20%35706 -- NAO Net at Once
47467 -- GRIFFEL Griffel AB
991.203.160.0/22132880.20%35706 -- NAO Net at Once
47467 -- GRIFFEL Griffel AB
10196.27.104.0/21122010.19%30969 -- TAN-NET TransAfrica Networks
8668 -- TELONE-AS TelOne Zimbabwe P/L
11196.27.108.0/22119640.18%30969 -- TAN-NET TransAfrica Networks
12203.63.26.0/24105940.16%9747 -- EZINTERNET-AS-AP EZInternet Pty Ltd
1363.84.91.0/24104800.16%27245 -- HEIDRICK-CHICAGO - HEIDRICK
1489.38.98.0/23100910.16%6663 -- EUROWEBRO Euroweb Romania SA
1583.239.192.0/2199570.15%42362 -- ALANIA-AS Sevosetinelectrosvyaz
16202.150.80.0/2087570.13%9251 -- SPEEDNET-AP PT Speed Internet Digital
17202.52.245.0/2484150.13%4613 -- MOS-NP Mercantile Office Systems
18205.106.88.0/2271510.11%5237 -- DODNIC - DoD Network Information Center
19203.202.140.128/2769960.11%7474 -- OPTUSCOM-AS01-AU SingTel Optus Pty Ltd
20148.208.211.0/2469700.11%8151 -- Uninet S.A. de C.V.
2163.239.134.0/2467840.10%29910 -- IACP - INTL. ASSN OF CHIEF OF POLICEI
22189.90.80.0/2067230.10%28194 --
23189.90.95.0/2466100.10%28194 --
24216.255.56.0/2165160.10%7106 -- OHIOBRIGHTNET - Com Net, Inc.
2584.240.198.0/2464790.10%31567 -- AKSORAN Aksoran LCC
26189.90.80.0/2464240.10%28194 --
27189.90.88.0/2463420.10%28194 --
28195.251.5.0/2463340.10%5408 -- GR-NET Greek Research & Technology Network, http://www.grnet.gr
29147.185.176.0/2061880.10%26276 -- TIMKEN-USA - The Timken Company
30208.83.119.0/2460540.09%23082 -- MPHI - Michigan Public Health Institute
31208.83.117.0/2460520.09%23082 -- MPHI - Michigan Public Health Institute
32208.83.118.0/2460510.09%23082 -- MPHI - Michigan Public Health Institute
3312.8.7.0/2460470.09%14593 -- BRAND-INSTITUTE - Brand Instiute, Inc.
34205.162.132.0/2359490.09%23541 -- Scarlet B.V.
3584.240.195.0/2458550.09%31567 -- AKSORAN Aksoran LCC
36125.23.208.0/2058390.09%24560 -- AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services
37148.243.225.0/2758300.09%6503 -- Avantel, S.A.
38203.101.87.0/2457770.09%9498 -- BBIL-AP BHARTI Airtel Ltd.
39193.188.42.0/2455420.09%12046 -- ASN-CSC-UOM Computing Services Centre
40196.44.176.0/2055400.09%31856 -- CABSAS
4164.84.104.0/2451780.08%32183 -- WINBEAM-AS-1 - Winbeam
42203.175.127.0/2444130.07%38717 -- TATI-AS-AP Top Amusement Technology International Corp. (for BGP GRE)
43202.92.235.0/2442300.06%9498 -- BBIL-AP BHARTI Airtel Ltd.
4464.84.99.0/2441930.06%32183 -- WINBEAM-AS-1 - Winbeam
45195.96.69.0/2441630.06%8225 -- ASTELIT-MSK-AS Astelit Autonomous System
4641.223.133.0/2440050.06%23348 -- EQT - Equatorial Research & Marketing Corp.
36988 -- MILLICOM-SL
4741.223.132.0/2439960.06%23348 -- EQT - Equatorial Research & Marketing Corp.
36988 -- MILLICOM-SL
48140.218.128.0/2439520.06%145 -- VBNS - MCI Communications Corporation
49208.87.40.0/2438240.06%40627 -- RC-COLO1 - RingCentral Inc
5089.4.131.0/2437470.06%24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA)
Total 5854188.97%

31 Day BGP Profile: 21-July-2008 00:00 - 20-August-2008 23:59 (UTC+1000)

Number of BGP Update Messages:  4273960
Number of Prefix Updates:  6031007
Number of Prefix Withdrawals:  476881
Average Prefixes per BGP Update:  1.52
Average BGP Update Messages per second:  1.55
Average Prefix Updates per second:  2.35
Peak BGP Update Message Rate per second:  2799  (05:29:58 Sat, 26-Jul-2008)
Peak Prefix Update Rate per second:  3207  (18:36:01 Tue, 5-Aug-2008)
Peak Prefix Withdraw Rate per second:  11239  (15:13:52 Thu, 31-Jul-2008)
Prefix Count:  303967
Updated Prefix Count:  301563
Stable Prefix Count:  2404
Origin AS Count:  29378
Updated Origin AS Count:  29227
Stable Origin AS Count:  151
Unique Path Count:  448407
Updated Path Count:  392509
Stable Path Count:  55898


 

Hourly Average of Per-Second Updated and Withdrawn Prefix Rate

Hourly Peak of Per-Second Updated and Withdrawn Prefix Rate

Hourly Average Per-Second Updated Prefix Rate by Update Type

Hourly Peak of Per-Second Updated Prefix Rate by Update Type

 

BGP Table Activity

Cumulative Distribution of per-Prefix and per-AS Updates


Notes

The data has been gathered using a single eBGP peering with AS 2.0. The observations of BGP path change are relative to this observation point. The updates are generated by a Quagga BGP implementation providing a timestamped log of incoming update messages. The timezone of this monitoring point is UTC+1000. Updates are processed on a 24 hour cycle.